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Jack Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Richland-County, South Carolina
Our Model Tree links this Jack Martin across the 1930 and 1940 US Censuses in Richland-County, South Carolina (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 9-person household.
Age 15
b. ~1925
Male
Son
Born: South Carolina
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Richland-County, South Carolina |
| Surname | Martin |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Columbia City |
| 1935 Residence (County) | Richland |
| Additional Details | |
| Hours Worked | 6 |
| Highest Grade | No 6 |
| 1935 Residence | Same Place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | Columbia City |
| Est. Birth Year | ~1925 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Jack | Age | Birth yr |
|---|---|---|---|---|
| William Martin | Head | — | 27 | ~1913 |
| Mildred Martin | Daughter | — | 20 | ~1920 |
| Jack Martin | Son | — | 15 | ~1925 |
| Nellie Martin | Spouse | — | 22 | ~1918 |
| Lula Martin | Daughter | — | 11 | ~1929 |
| Thelma Martin | Daughter | — | 10 | ~1930 |
| Sybel Martin | Daughter | — | 5 | ~1935 |
| William Martin | Son | — | 8 | ~1932 |
| Donald Martin | Son | — | 7 | ~1933 |
Census Appearances
1930
Richland, South …
Son, age 5
Richland, South Carolina · implied b. ~1925 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Richland-County, South …
Son, age 15
Richland-County, South Carolina · implied b. ~1925 — 9 household members
| Surname | Martin |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Columbia City |
| 1935 Residence (County) | Richland |
| Hours Worked | 6 |
| Highest Grade | No 6 |
| 1935 Residence | Same Place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Jack Martin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Jack Martin
Son · 1940 · age 15 · b. ~1925 · South Carolina
★ You are viewing this record
Sibling
Sybel Martin
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Martin
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thelma Martin
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lula Martin
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Martin
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Martin
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Richland-County, South Carolina
Open full size
1940 US Federal Census — Richland-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03833-00248)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mexie Sturkie | 22 | Head | Driver | South Carolina |
| 42 | Margurite Sturkie | 20 | Wife | — | South Carolina |
| 43 | Ellen J Sturkie | 1 | Daughter | — | South Carolina |
| 44 | John Jones | 19 | Brother-in-law | Attendant | South Carolina |
| 45 | Jerry B Shealey | 39 | Head | State Constable | South Carolina |
| 46 | Eula L Shealey | 37 | Wife | — | South Carolina |
| 47 | Virginia E Shealey | 14 | Daughter | — | South Carolina |
| 48 | Edith Shealey | 4 | Daughter | — | South Carolina |
| 49 | Jarrett Shealey | 2 | Daughter | — | South Carolina |
| 50 | John R Sellers | 47 | Head | Canteen Man | South Carolina |
| 51 | Mucie Sellers | 38 | Wife | — | South Carolina |
| 52 | Carl R Sellers | 20 | Son | Canteen Man | North Carolina |
| 53 | Margurite E Sellers | 18 | Daughter | Clerk | North Carolina |
| 54 | John J Miller | 65 | Head | Butcher | South Carolina |
| 55 | Clara E Miller | 55 | Wife | — | England |
| 56 | Gloria Miller | 19 | Daughter | Stenographer | South Carolina |
| 57 | Leon Miller | 17 | Son | Salesman | South Carolina |
| 58 | Alexander H Trayman | 36 | Head | Brick Mason | South Carolina |
| 59 | Minnie Trayman | 35 | Wife | Handicraft | South Carolina |
| 60 | Harold Jr Trayman | 13 | Son | — | South Carolina |
| 61 | James Trayman | 7 | Son | — | South Carolina |
| 62 | William E Martin | 27 | Head | Sign Painter | South Carolina |
| 63 | Nellie Martin | 22 | Wife | — | South Carolina |
| 64 | Mildred Martin | 20 | Daughter | — | South Carolina |
| 65 | Jack Martin THIS PERSON | 15 | Son | — | South Carolina |
| 66 | Lula Martin | 11 | Daughter | — | South Carolina |
| 67 | Thelma Martin | 10 | Daughter | — | South Carolina |
| 68 | William Martin | 8 | Son | — | South Carolina |
| 69 | Donald Martin | 7 | Son | — | South Carolina |
| 70 | Sybel Martin | 5 | Daughter | — | South Carolina |
| 71 | James M Woodbury | 38 | Head | Janitor | South Carolina |
| 72 | Julia S Woodbury | 40 | Wife | — | South Carolina |
| 73 | Ronald Sykes | 26 | Head | Janitor | South Carolina |
| 74 | Emma Sykes | 23 | Wife | — | South Carolina |
| 75 | Marion Sykes | 7 | Son | — | South Carolina |
| 76 | Princesetta Sykes | 1 | Daughter | — | South Carolina |
| 77 | Fannie Hills | 25 | Sister-in-law | Cook | South Carolina |
| 78 | William Jenkins | 27 | Head | Laborer | South Carolina |
| 79 | Ruth Jenkins | 24 | Wife | Maid | South Carolina |
| 80 | John H Reese | 25 | Head | Porter | South Carolina |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)